Enfeld



(No Model.)

2 Sheets--Sheet 1. O. HUBER,

APPARATUS FOR HATGHING, RULING, AND DRAWING 0N STONE, 6m.

No; 247,060. Patented Sefit. 13,1881.

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2' Sheets-Sheet 2. 0. HUBER.

Patented Sept. 13,1881.

(No Model.)-

APPARATUS FOR HATGHING, RULING, AND DRAWING 0N STONE, &c. No. 247,060.

A I UNITED STATES PATENT OFFICE.

GASPAR HUBER, OF ZURICH, ASSIGNOR TO F. MARTINI & 00., OF FRAU- ENFELD,SWITZERLAND.

APPARATUS FOR HATCHING, RULING, AND DRAWING 0N STONE, 6w.

SPECIFICATION formingpart of Letters Patent No. 247,060, dated September13, 1881.

Application filed March 12, 1881.

zen of the Republic of Switzerland, residing at Zurich, in the canton ofZurich, Switzerland,

have invented new and useful Improvements in Apparatus for Hatching,Ruling, and Drawing on Stone and other Materials, of which'the followingis a specification.

This invention has for its object improvements in apparatus forhatching, ruling, or drawing straight, curved, or undulatory lines onstone, steel, copper, wood, or other material, and hasireference, first,to means for effecting the feed or intermittent sidewise motion of themarking-instrumentin such apparatus; second- 1y, to means whereby theamountof the feed may be automatically increased or diminishedgradually, so that lines may be drawn at gradually increasing ordiminishing distances apart; thirdly, to means for effecting the rulingor drawing of undulatory lines; fourthly, to the construction andoperation of the slide and holder that carries the marking-instrumen t.A sliding piece having a long rig-id arm is carried at one end on afixed rod, and is furnished with.

clamping devices, which embrace the said rod and are free to seize andrelax their hold by being moved in recesses and being urged in onedirectioniby a spring. With these clampin g-piecesiis combineda spindleprovided with an eccentric,whereby the'clamping-pieces may by turningthe spindle be caused to gripe the rod when required. Theeccentric-spindle carries a finger which abuts against the slidingarm,and' a hand-lever which can" be turned through a distance determinedby an ad justable stop. The effect of turning the hand-lever andeccentric-spindle in one direction is to lock the clamping-piecesagainst the rod, so that (No model.)

made in the form of an eccentric, or cam, and is attached to anindex-lever pivoted on a stud. This lever can be secured opposite anypoint on a scale. The angular motion of the indexlever varies theposition'of the eccer1tric stop with relation to the hand-leverhcreinbefore described, and consequently varies the amount of feedimparted to the sliding arm by the motion of the said hand-lever. In thesliding arm are undulating lines or grooves, into either of which ascrew or screws on the marking-instrument holder can be entered, so thatthe said holder, in traveling along the said arm, may be along thesliding arm. The lever or handle by which the said slide isinovedbackward and forward to draw the lines also serves to raise themarking-instrument from the material to bedrawn or engraved upon at theend of each course. The index-lever can be left free and be controlledby contact of its unmarked end with an inclined adjustable bar, bywhich, as the index-lever is carried forward by the intermittent motionof'the sliding arm, it is gradually pushed over to automatically alterthe distance apart of the lines to be produced.

Referring to the accompanying two sheets of drawings, Figure l is a planof the improved apparatus for hatching, ruling, or drawing straight,curved, or undulatory lines. Fig. 2 is an end elevation of the same.Fig. 3 is a side elevation. Fig. 4 is a side elevationof the slide thatcarries the marking-instrument as it appears while the line is beingdrawn. Fig. 5 is a similar view, showing the slide as it appears whilebeing pushed back to the starting position after aline has been drawn.Fig. dis a plan of part of the sliding arm, with the hand-lever,index-lever, and cover-plate removed. Fig. 7 is an end elevation of thecover-plate, i ndeX-lever, and cam or eccentric. Fig. 8 is a sectionalplan of part of the sliding arm, taken in the center line of the rod 4,Fig. 6. Fig. 9 is a vertical longitudinal'section in line A B, Fig. 6.Fig. 10 is a'vertical longitudinal section in line C D, Fig. 6. Fig. 11is a vertical cross-section in line E F, Fig. 6. Fig. 12 is a verticalcross-section in line G B, Fig. 6. Fig. 13 is a vertical sectionalelevation of the slide which carries the marking-instrument. Fig. 14shows two elevations of the handle for moving the slide and marking-instrument backward and forward. Fig. 15 shows, on alarger scale, thethree undulating lines, each differing from the other, so as to inducecorresponding undulations in the lines produced by the marker when thecorresponding screw is engagcd.

Similar figures and letters of reference indicate like parts in all thefigures.

1 is a frame which serves as the base for the other parts of theapparatus. It is faced or covered on its lower side with caoutchouccloth to form a yielding cushion between it and the surface of thematerial on which it may belaidl 2 is a sliding arm, forming a guide forthe slide 16, which carries the marking-instrument. The rod 5 issupported in bearings at each end in the slide 2, and acts as anadditional guide to the slide 16. The fixedv rod 4 is secured inbearings upon the frame 1, and is designed, among other purposes, toform a guide and support for one end of the sliding arm 2, which slidesat its other end on the plane surface m. The mechanism which effects thefeed, and which is shown in greater detail in Figs. 6, 7, 8, 9, 10, 11,and 12, is situated at the left-hand end of the sliding arm 2.

. 3 is a packing or filling piece, secured to the sliding arm 2 by twoscrews, 13 13, Figs. 1, 6,

and 8.

6 is a clamping-piece embracing the rod 4, Figs. 8, 9, and 10, andfitting loosely in a recess in the sliding arm 2.

7 is a second clamping piece or key, fitting in a groove, and securedfrom moving endwise in the said clamping-piece by the point of theset-screw 8, which takes into a hole bored for its reception in thepiece 7.

11 is a helical spring, fitting in a recess in the clampingpiece 6 andabutting against the sliding arm 2.

9, Figs. 8, 10, and 12, is a spindle carried by v the clamping-piece 6,and provided with an eccentric or cam -like portion and a squaresurmounted by a screw at its upper part. Below the squared part is fixeda finger, a, Fig. 6, lying in a recess or slot in the cover-plate, Fig.10, and on thesquared part is secured a handlever, 10, Figs. 1 and 3.This hand-lever can be turned from the position in which it is showntoward the left hand until it comes in contact with the cam oreccentric-stop f attached to carry the marking-instrument along anundulatory path. The slide 16 is moved backward and forward by thehandle 20, Figs. 4, 5, and 14, which is pivoted to the stud b. The hole0 receives the stud b. The toe d of the lever 20 stands under a part ofthe arm e, which is provided with theweighth, and serves to raise,through the interposition of the arm 0, the marking-instrument from thematerial to be engraved at the end of a line. The markinginstrument mustbe raised previous to and during its return motion and be lowered withits point on the exact position for commencing the next line. K K arehandles for lifting the whole.

The operation of the apparatus is as follows It is laid upon the surfaceor material to-be drawn or engraved upon. The stud b of the handle 20 isplaced in the hole 0 and the marking-instrument, carried in the holder18, adjusted to the position for the first line. commencing at theleft-hand side. The slide is drawn from left to right by the handle 20,held in the position shown in Fig. 4, and on the com pletion of the lineis pushed back by the handle, after the said handle has been loweredinto the position shown in Fig. 5, to the starting-point. Simultaneouslywith the return of the slide the hand-lever 10 is pushed over by theleft hand of the operator until it comes against the stop f. The angularmotion of the hand-lever rotates the spindle to which it is attached andbrings its eccentric or cam-like portion to bear against theclamping-piece 7, thereby causing the two pieces 6 and 7 to tightlyembrace the rod 4, so that they form an abutment or fulcrum,'thatenables the finger a on the spindle (as the lever is moved farther) topush against the cover-plate 12 and to move the sliding arm forwardthrough a distance dependent on the range of motion of the hand-lever.On the return of the arm to its original position the spring 11 pushesthe clamping-piece again to the end of the recess, thereby actuating thefeed mechanism and carrying the sliding arm sidewise through a spaceequal to the pitch or distance from center to center of adjoining lines.The bar 22 is pivoted at one end and secured at the other end by theset-screw 23. Its angular position with regard to the rod 4, andconsequently with regard to the path of the sliding arm, maybe varied, aslot being provided through which the set-screw passes for the purpose.

When it is desired to rule undulating lines one of the screws 1 isturned so as toenter one of the grooves 70 and receive therefrom anundulating or rocking motion, which, though slight, is sufficient toimpart the required vibrations to the point of the marker i.

It will be understood that the grooves k are undulatory in the verticaldirection, and rock the marker by causing it and its connectionsmatically increased at each operation of the feed mechanism by. theindex-lever 21 receiving an angular movement resulting from its beingcarried forward while its end is in con- 5 tact with the inclined bar22. The movement of the index-lever 21 partially rotates the cam oreccentric f and. varies the limit of the travel of the hand-lever.

It will be evident that the details of construction of this mechanismare susceptible of modification without departure from the essentialcharacteristics of the invention.

The apparatus may be constructed to trace convergent lines by joiningthe sliding arm I 2 to the feed mechanism by a pivot or hingejoint andby providing asuitable support for its other end.

What I claim is- 1. In a drawing apparatus, the combination,

v with a spindle, g a, and spring 11 for effecting the feed orintermittent sidewise motion of the marking-instrument, of a clampingdevice, 6 7

8, adapted to serve substantially as set forth.

2. In a drawing-machine, the combination,

with the sliding arm 2 (serving as a guide for the marking-instrument)and a rod or device, 5, along which that arm is adjustable, of clamp:

ing-pieces 6 7 8, a spindle, 9, with an eccentric or cam, f, a finger orprojection, a, and a spring, 11, as and for the purposes specified.

3. In an apparatus for hatching, ruling, and drawing'on stone or othermaterial, the C011]- bination, with the feed mechanism, of an eccen-ving-instrument, traveling upon an axis about which it is capable ofoscillation, of a guide constructed with vertically-undulatin g groovesarranged so as to cause the marking-instrument to travel in a sinuouscourse, substantially asset forth.

OASPAR HUBER.

Witnesses FR. MARTINI, FREDERICK VETTER.

